ICD-10-CM > M00-M99 > M05-M14 > M08 > M08.8 > M08.87 M08.87 Other juvenile arthritis, ankle and foot Non-Billable/Non-Specific Codes M08.871Other juvenile arthritis, right ankle and footM08.872Other juvenile arthritis, left ankle and footM08.879Other juvenile arthritis, unspecified ankle and foot